Open-Type Knife Switch and Knife-Type Changeover Switch

hd11 series open knife switch

HD11 Open Knife Switch

HD open and HS dual-throw switches for AC 50Hz (400V AC/230V DC, 630A) distribution gear. Arc-extinguishing models handle load switching; others for isolation. Compact, easy to operate, compliant with IEC 60947-3/GB/T 14048.3. HD11 for power station non-load switching and isolation.
QKSG Dual power automatic transfer switch

QKSG-125

Electromechanical ATSE for AC 50Hz systems (up to 440V, 3200A). Integrates switching and logic control with voltage detection, communication, and interlocking. Supports automatic/remote control, forced ‘0’ position, and emergency manual operation. Used for primary/backup power transfer, load switching, and safety isolation.

QKH1(HR6)-160

QKH1(HR6)-160

Fuse-switch disconnectors for AC 50Hz systems (1000V insulation, 400/690V operation, 160A–800A). Used in distribution and motor circuits as power, isolating, or emergency switches for circuit protection. Not for direct motor switching; fuse-link replacement removes overload/short-circuit protection.

QKH1(HR6)-250

QKH1(HR6)-250

Fuse-switch disconnectors for AC 50Hz systems (1000V insulation, 400/690V operation, 160A–800A). Used in distribution and motor circuits as power, isolating, or emergency switches for circuit protection. Not for direct motor switching; fuse-link replacement removes overload/short-circuit protection.
QKH1(HR6)-630

QKH1(HR6)-630

Fuse-switch disconnectors for AC 50Hz systems (1000V insulation, 400/690V operation, 160A–800A). Used in distribution and motor circuits as power, isolating, or emergency switches for circuit protection. Not for direct motor switching; fuse-link replacement removes overload/short-circuit protection.

QKH1(HR6)-400

QKH1(HR6)-400

Fuse-switch disconnectors for AC 50Hz systems (1000V insulation, 400/690V operation, 160A–800A). Used in distribution and motor circuits as power, isolating, or emergency switches for circuit protection. Not for direct motor switching; fuse-link replacement removes overload/short-circuit protection.
QKH1(HR6)-800

QKH1(HR6)-800

Fuse-switch disconnectors for AC 50Hz systems (1000V insulation, 400/690V operation, 160A–800A). Used in distribution and motor circuits as power, isolating, or emergency switches for circuit protection. Not for direct motor switching; fuse-link replacement removes overload/short-circuit protection.
HS11FD-400

HS11FD-600

Interlock-protected knife switches for AC 50Hz systems (690V insulation, 400V operation, 200A–600A). Used for no-load circuit making/breaking, isolation, and short-circuit grounding protection to prevent miswiring and misoperation. Compliant with GB/T 14048.3.

HS11FD-400

HS11FD-400

Interlock-protected knife switches for AC 50Hz systems (690V insulation, 400V operation, 200A–600A). Used for no-load circuit making/breaking, isolation, and short-circuit grounding protection to prevent miswiring and misoperation. Compliant with GB/T 14048.3.

HD11F

HD11F

For AC 50Hz switchgear (up to 690V, 3000A). Used for manual circuit control or isolation. Multiple operating mechanisms available. Arc chute-equipped models can break load currents; others for isolation only. Compliant with GB/T 14048.3.

HD11-400

HD11-400

For AC 50Hz switchgear (up to 690V, 3000A). Used for manual circuit control or isolation. Multiple operating mechanisms available. Arc chute-equipped models can break load currents; others for isolation only. Compliant with GB/T 14048.3.

HD11F-400

HD11F-400

For AC 50Hz switchgear (up to 690V, 3000A). Used for manual circuit control or isolation. Multiple operating mechanisms available. Arc chute-equipped models can break load currents; others for isolation only. Compliant with GB/T 14048.3.

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